“Can the highlighted lines to be invisible in 3dview”
If you want to do this with dynamo --> no it cannot be done.
If you just want to do this by hand in Revit, you should not place the question here but on a Revit forum.
But for now, yes it can be done, but only by hand in Revit.
- Go to Linework in the modify panel
- Make sure the Linestyle is set to
- Select the edges of the element which you want to be invisible.